private Collection<? extends Callable<?>> recordedTasks;
  private long recordedTimeout;
  private TimeUnit recordedTimeUnit;

  private final ListeningExecutorService executorService = new FakeExecutorService();

  public void testInvokeAny() throws Exception {
    Set<Callable<String>> tasks = Collections.singleton(() -> "invokeAny");

    String result = executorService.invokeAny(tasks, Duration.ofSeconds(7));

  private Runnable recordedCommand;
  private long recordedDelay;
  private long recordedInterval;
  private TimeUnit recordedTimeUnit;

  private final ListeningScheduledExecutorService executorService = new FakeExecutorService();

  public void testScheduleRunnable() throws Exception {
    Runnable command = () -> {};

    ListenableScheduledFuture<?> future = executorService.schedule(command, Duration.ofSeconds(12));